These patches are extremely easy to use, do not have an over-powering odour, and do help with local pain.
They are not pain-killers as such but do help and I will continue to purchase the product, which also has a non-allergenic sticky backing and can be used almost everywhere on the body where pain relief is required.

My mother is addicted to this stuff! She uses it for her back pain, shoulder pain, arm strains even when her tooth aches. She will put this when ever she is very achy. The only downfall to this product is when it is time to pull it off! It's just as bad as waxing especially if you are a hairy person, I prefer to use deep heat or menthol products or tiger balm, eucalyptus products . I guess it just depends on your preference and if you don't mind ripping it off your skin.